That's fine- let him enjoy it
I weigh mine so next time if you are a bit unsure weigh it so you still are giving him the correct amount for his weight.
I give Milly about 100g and Monty 150g of RAW per meal, although sometimes more. Sometimes you can cut things in half and not quite enough so I give them the whole lot, but just don't do it it all the time. You know what they are like not as if they will say " no more mum I am full"
Bones can weigh a lot too-some some is all bone and not much meat.